[Fluid dynamics in the Port-a-Cath Low Profile: therapeutic uses]

The treatment of infection and obstruction in totally implantable central venous access catheters is based on the administration of medication into the system. Injected medication may be diluted in the portal which acts as a dead space in the line. We have studied the dynamic of fluids in the Low Profile Port-a-Cath, and developed an infusion-suction technique with double syringe to achieve high concentrations in the system with minimum repercussion in the vascular space. This procedure can be applied both in the treatment of infection with high-dose local antibiotics and in total or partial obstructions.